A school intercom systems is additionally extensively known as a, or public address, system. It initially was developed for instructional purposes, and also is still made use of by schools today, yet various other sort of services as well as organizations have embraced intercoms for their applications, potentially changing them to some extent. As a result, communication protocols have been stretched to the point where a review and/or upgrade of them could be suitable today.

An intercom school has actually set itself up to relay messages bent on everyone existing on the grounds (or at the very least inside) regardless of location, in contrast to calling for attendance at a setting up. This suggests that noise has to be piped right into all rooms (primarily classrooms) to reach the institution populace. By doing this, all listen to the message(s) simultaneously.